Forensic - Unwanted Meow (328 pts)

Description

Uh.. Oh.. Help me, I just browsing funny cats memes, when I click download cute cat picture, the file that been download seems little bit wierd. I accidently run the file making my files shredded. Ughh now I hate cat meowing at me.

Author: 4jai

Hint : We don’t want meow here.

Attachment :

Solution

We were given a flag.shredded file. It is a jpeg file but we cannot open it because it contains some corrupt data

We can try to open the file with HxD and see the metadata inside of the picture

We find that there are a lot of “meow” string inside the picture. From the clue, we know that we “don’t want meow”, so we can just simply erase all of the “meow” string and save it as a new picture

We know get this flag, and a bit of luck + trial and error, we can figure out the broken flag in the middle is suppose to be 14 (flipped from 41 like we see in the picture)

Flag

WGMY{4a4be40c96ac6314e91d93f38043a634}